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SigmasTek  |  SKU: BW-5304

Alpha Technologies Nexsys 600 UPS High Performance Compatible Replacement Battery Set 25.32 lb

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New arrival
Sale price $113.99 USD Regular price $126.99
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Replacement pack of 2 SigmasTek 12V 18AH batteries for Nexsys 600 UPS
High rate discharge design delivers powerful energy during outages
Valve regulated, spill-proof build for safe and reliable use
Low self-discharge reduces need for frequent replacements
Certified and factory fresh with 1-year warranty coverage
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

SigmasTek SP12-18HR Replacement Battery Set for Alpha Technologies Nexsys 600

Built for compatibility with the Alpha Technologies Nexsys 600, this replacement UPS battery set offers dependable, high-rate discharge performance and consistent factory-new reliability. Each order contains two SigmasTek SP12-18HR batteries (12 Volts, 18 AH) engineered to restore runtime and protection to your Nexsys 600. Please reuse all original cables and hardware when installing these replacement batteries.

Key Specifications

  • Battery set includes: 2 x SigmasTek SP12-18HR
  • Voltage: 12 Volts
  • Capacity: 18 AH (amp-hours)
  • Battery chemistry/design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Vibration resistance: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Terminal type: Nut & Bolt
  • Brand: SigmasTek (replacement for Alpha Technologies)
  • Compatible with: Alpha Technologies Nexsys 600 Uninterruptible Power Supply (UPS) unit
  • Typical applications: Uninterruptible Power Supply (UPS) Units, Emergency Power Supply, Battery Powered Tools

Benefits

  • Durability: Valve-regulated, spill-proof construction and high vibration resistance provide a rugged, reliable solution for UPS installations and mobile applications.
  • Long life: Low self-discharge ensures stored capacity remains available, delivering a long-lasting battery that performs when called upon.
  • High performance: As a high-performance UPS battery, the SP12-18HR is optimized for high-rate discharge, supplying bursts of power needed by the Nexsys 600 during outages.
  • Quality assurance: Each replacement UPS battery is factory-new and tested to meet or exceed OEM expectations for performance and runtime.
  • Application flexibility: Suitable for UPS back-up, emergency power systems, and battery-operated tools requiring 12V 18AH support.
  • Easy installation: Intended to be used with the original cables and hardware, enabling quick replacement by maintenance staff or technicians.

Replace your Alpha Technologies Nexsys 600 batteries with confidence. Order this long-lasting battery set today for reliable backup power and fast dispatch for in-stock items.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)25.3

Product Highlights

  • Brand Replacement : Alpha Technologies
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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